JPS5538719A - Vtr - Google Patents

Vtr

Info

Publication number
JPS5538719A
JPS5538719A JP11093878A JP11093878A JPS5538719A JP S5538719 A JPS5538719 A JP S5538719A JP 11093878 A JP11093878 A JP 11093878A JP 11093878 A JP11093878 A JP 11093878A JP S5538719 A JPS5538719 A JP S5538719A
Authority
JP
Japan
Prior art keywords
circuit
supplied
signal
sent
oscillator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP11093878A
Other languages
Japanese (ja)
Other versions
JPS627753B2 (en
Inventor
Noriyuki Yamashita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP11093878A priority Critical patent/JPS5538719A/en
Publication of JPS5538719A publication Critical patent/JPS5538719A/en
Publication of JPS627753B2 publication Critical patent/JPS627753B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To secure a high-quality reproduced picture frame even at a high-speed time by applying the drum servo in order to secure always a constant frequency for the horizontal synchronous signal in the reproduced signal.
CONSTITUTION: The horizontal synchronous signal in the reproduced signal sent from half H-killer circuit 30 is supplied to switch circuit 46 along with the horizontal synchronous signal underwent AFC and sent from switch circuit 35. At the same time, these signals are supplied to decision circuit 47 to extract the signals sent from circuit 35 or 30 through switch circuit 46. The signals from circuit 46 are supplied to frequency comparator circuit 48. At the same time, the signal featuring the oscillation frequency of 15.625kHz and sent from oscillator 49 is supplied to circuit 48 as the reference signal. The comparison output is supplied to voltage control type variable frequency oscillator 51 through low pass filter 50, and the output of oscillator 51 is supplied to drum motor 52.
COPYRIGHT: (C)1980,JPO&Japio
JP11093878A 1978-09-08 1978-09-08 Vtr Granted JPS5538719A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11093878A JPS5538719A (en) 1978-09-08 1978-09-08 Vtr

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11093878A JPS5538719A (en) 1978-09-08 1978-09-08 Vtr

Publications (2)

Publication Number Publication Date
JPS5538719A true JPS5538719A (en) 1980-03-18
JPS627753B2 JPS627753B2 (en) 1987-02-19

Family

ID=14548378

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11093878A Granted JPS5538719A (en) 1978-09-08 1978-09-08 Vtr

Country Status (1)

Country Link
JP (1) JPS5538719A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4656537A (en) * 1984-12-27 1987-04-07 Kabushiki Kaisha Toshiba High speed reproduction method and apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2022065349A1 (en) 2020-09-25 2022-03-31

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4939323A (en) * 1972-08-14 1974-04-12
JPS5031808A (en) * 1973-07-19 1975-03-28

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4939323A (en) * 1972-08-14 1974-04-12
JPS5031808A (en) * 1973-07-19 1975-03-28

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4656537A (en) * 1984-12-27 1987-04-07 Kabushiki Kaisha Toshiba High speed reproduction method and apparatus

Also Published As

Publication number Publication date
JPS627753B2 (en) 1987-02-19

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